Not a good idea to replace the use of the rear view mirror. First, the mirror angle can be adjusted by just reaching to it. Although the GoPro has a wide view, it still will not be able to do what the mirror can do. Second and more important, looking down at the Big display (2010 not so bad because it is mounted at the top of the dash, others have the Big display way low) opposed to looking up and still having your sight on what is going on in front of the boat, would be an safety issue.

+1... The rear mirror has been worth its weight in gold.. No camera will compare!